In this third part of the Zenon trilogy, everyone's favourite over-achiever is determined to win the Galactic Teen Supreme contest, and then celebrate at 2054's Moonstock Festival. But Zenon's plans are disrupted when moon activist Sage arrives, begging for Zenon's help to stop the Moon being colonised. Can Zenon help her, and still win the contest? Intergalactic fun and games in this great family film.